Description
atalk_create in net/appletalk/ddp.c in the AF_APPLETALK network module in the Linux kernel through 5.3.2 does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka CID-6cc03e8aa36c.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 5.3.7-1 | — |
| Debian 13 | linux | 5.3.7-1 | — |
| Debian 12 | linux | 5.3.7-1 | — |
| Debian 8 | linux | 3.16.81-1 | DLA-2068-1 |
| Debian 8 | linux-4.9 | 4.9.210-1~deb8u1 | DLA-2114-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-69.78 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1054.56 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-azure | 5.0.0-1025.27~18.04.1 | USN-4184-1 |
| Ubuntu 18.04 LTS | linux-gcp +1 | 5.0.0-1025.26~18.04.1 | USN-4184-1 |
| Ubuntu 18.04 LTS | linux-gcp-edge +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1048.51 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-hwe | 5.0.0-35.38~18.04.1 | USN-4184-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1050.50 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1063.72 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-oem-osp1 | 5.0.0-1027.31 | USN-4184-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1029.32 | USN-4185-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1050.54 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1067.74 | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-168.197 | USN-4186-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1098.109 | USN-4186-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1054.56~16.04.1 | USN-4185-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1063.68 | USN-4185-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1049.52 | USN-4185-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-69.78~16.04.1 | USN-4185-1 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1062.69 | USN-4186-1 |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1029.32~16.04.1 | USN-4185-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1125.134 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1129.137 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 18.04 LTS | linux-aws-fips +2 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2018.18 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2006.7 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1025.30 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1058.62 | USN-4186-2 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1063.68~14.04.1 | USN-4185-2 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-168.197~14.04.1 | USN-4186-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.108.1 | SUSE-SU-2019:14218-1 |
| SLES 11 SP4 | ocfs2 | 1.6-0.28.11.2 | SUSE-SU-2019:14218-1 |
Advisories 8
- USN-4185-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Sep 9, 2026
- USN-4186-1 linux, linux-aws, linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Sep 9, 2026
- USN-4185-2 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Sep 9, 2026
- USN-4186-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Sep 9, 2026
- USN-4184-1 linux, linux-aws, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem-osp1, linux-oracle, linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Sep 9, 2026
- DLA-2114-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2068-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:14218-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0edc3f703f7bcaf550774b5d43ab727bcd0fe06b
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac
- FEDORA-2019-41e28660ae vendor-advisory
- 20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01) mailing-list
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- USN-4185-1 vendor-advisory
- USN-4184-1 vendor-advisory
- USN-4186-1 vendor-advisory
- USN-4185-2 vendor-advisory
- USN-4186-2 vendor-advisory
- [debian-lts-announce] 20200118 [SECURITY] [DLA 2068-1] linux security update mailing-list
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update mailing-list